GdipMeasureString 怎么用
时间: 2023-07-03 08:07:22 浏览: 52
GdipMeasureString 是 GDI+ 中的一个函数,用于测量字符串在指定字体和大小下的宽度和高度。下面是使用 GdipMeasureString 的基本步骤:
1. 引入命名空间:System.Drawing 和 System.Drawing.Drawing2D
2. 创建 Graphics 对象,并设置 Graphics 对象的 SmoothingMode 和 TextRenderingHint 属性。例如:
```
Graphics g = Graphics.FromImage(bitmap);
g.SmoothingMode = SmoothingMode.HighQuality;
g.TextRenderingHint = TextRenderingHint.AntiAlias;
```
3. 创建 Font 对象。例如:
```
Font font = new Font("Arial", 12);
```
4. 调用 GdipMeasureString 方法,传入要测量的字符串、字体、布局矩形和 StringFormat 对象。例如:
```
RectangleF layoutRect = new RectangleF(0, 0, 200, 100);
StringFormat format = new StringFormat(StringFormatFlags.NoClip);
SizeF size = new SizeF();
g.MeasureString("Hello, world!", font, layoutRect.Size, format, out size);
```
5. 最后,可以通过 size 对象的属性获取字符串的宽度和高度。例如:
```
float width = size.Width;
float height = size.Height;
```
完整的示例代码:
```
using System.Drawing;
using System.Drawing.Drawing2D;
Bitmap bitmap = new Bitmap(200, 100);
Graphics g = Graphics.FromImage(bitmap);
g.SmoothingMode = SmoothingMode.HighQuality;
g.TextRenderingHint = TextRenderingHint.AntiAlias;
Font font = new Font("Arial", 12);
RectangleF layoutRect = new RectangleF(0, 0, 200, 100);
StringFormat format = new StringFormat(StringFormatFlags.NoClip);
SizeF size = new SizeF();
g.MeasureString("Hello, world!", font, layoutRect.Size, format, out size);
float width = size.Width;
float height = size.Height;
```
相关推荐
![rar](https://img-home.csdnimg.cn/images/20210720083606.png)
![rar](https://img-home.csdnimg.cn/images/20210720083606.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)